I think these are what you're looking for...

https://en.bitcoin.it/wiki/Original_Bitcoin_client/API_calls_list

https://en.bitcoin.it/wiki/Running_Bitcoin

or
Use bitcoind help to get a list of all RPC commands. Use bitcoind help to get information about RPC command .
https://bitcoin.stackexchange.com/questions/13895/where-can-i-get-all-the-commands-with-descriptions-for-bitcoind-on-my-linux-serv